It is a paper made from 100% waste recycled fibers, with a good forming, uncolored and unglued, used as a liner or a layer, for the manufacturing of the type 3F and 5F corrugated cardboard.

- Basis weight: 80 - 220 g/sqm ± 3%;
- Short-Span Compression Test SCT - CD, min: 1,15 - 1,73 KN/m, depending on weight;
- Ring Crush Test (RCT): min 0.4 to 0.9 KN/m, depending on weight;
- Bursting strength (Rpl), min: 165 to 240 KPa, depending on weight;
- Burst index, min: 1,65 kPa for weights between 100 - 120 and 1,60 kPa for weights between 125 - 150;
- Moisture: 6 - 9%;
- Color: brown or the color of the recycled fibers.